 Rivers include the Weter, Lange and Goro; other bodies of water include the seasonal Lake Adele.A survey of the land in Kersa (released in 1995/96) shows that 28.5% is arable or cultivable, 2.3% pasture, 6.2% forest, and the remaining 56.3% is considered built-up, degraded or otherwise unusable.Khat, fruits and vegetables are important cash crops.